Features. Youth reversible speedway muscle tee. 100 polyester Birdseye - 4 oz.. Moisture wicking. Odor resistant. Stain release. Ultra tight knit resists snagging. Two color side panel on both sides. Color - Black White. Size - Large. Item weight - 0.63 lbs.Care Instructions. Machine wash cold.. Use mild detergent.. Do not bleach.. Tumble dry low.. Do not use fabric softeners.. Remove promptly. Do not iron.